Lifting type sweeping mechanism of sweeping robot

By adopting a lift sweeping mechanism in the sweeping robot, the problem of constant pressure and insufficient barrier performance caused by the height fixation of the rotary mopping brush is solved, and efficient cleaning of stubborn debris and stains is achieved and the ability to overcome obstacles is improved.

CN120203450APending Publication Date: 2025-06-27CANGNAN COUNTY XINGTAI CLEANING SUPPLIES CO LTD
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Patent Information

Application Number
CN202510672963.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2025-06-27

AI Technical Summary

Technical Problem

The rotary mopping brushes of existing sweeping robots are fixed in height, resulting in constant pressure applied to the ground during the cleaning process, making it impossible to effectively clean up stubborn debris and stains stuck to the floor, and also affects the performance of obstacles.

Method used

The lifting sweeping mechanism is adopted, through the lifting assembly and the adjustment assembly, the height of the cleaning assembly and the cleaning area of ​​the cleaning brush can be adjusted. The lifting assembly consists of a lifting plate, a transmission member and a connecting plate driven by a servo motor. The adjustment assembly adjusts the position and area of ​​the cleaning brush through a second push rod.

Benefits of technology

By adjusting the height of the cleaning components, the pressure on the ground can be increased when needed, and stubborn debris and stains can be effectively cleaned; at the same time, when needed, the height of the cleaning brush is adjusted to improve the ability to overcome obstacles and ensure the continuity and efficiency of cleaning work.

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Abstract

The invention discloses a lifting type floor sweeping mechanism of a floor sweeping robot, and relates to the technical field of floor sweeping robots, the lifting type floor sweeping mechanism comprises a robot body, and further comprises a lifting assembly and a cleaning assembly which are assembled in the robot body, if the cleaning area of a cleaning brush needs to be adjusted, a second electric push rod can be started, and when the second electric push rod descends, the cleaning brush is started; when the fixing plate moves, the fixing plate is driven to move together, then a rotating plate is pushed to descend along a sliding groove, descending of the rotating plate enables a mounting frame to abut against a connecting rod on the periphery of a positioning rod, the connecting rod drives a moving block to move on the inner wall of a moving groove and the periphery of the fixing rod, and at the moment, a telescopic spring in an extrusion state starts to rebound to assist movement of the moving block; the longer the descending distance of the second electric push rod is, the farther the moving distance of the cleaning brushes driven by the moving blocks is, the multiple cleaning brushes can be far away from one another, and therefore the cleaning area is effectively increased, on the contrary, the second electric push rod ascends to enable the multiple moving blocks to be close to one another, the cleaning brushes can be close to one another, and then the cleaning area is reduced.
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Description

Technical Field

[0001] The present invention relates to the technical field of floor-sweeping robots, and particularly to a lifting floor-sweeping mechanism for a floor-sweeping robot. Background Art

[0002] Floor-sweeping robots, as outstanding representatives in the field of modern intelligent household appliances, rely on advanced artificial intelligence technology to autonomously perform floor cleaning tasks in rooms, greatly improving the convenience and efficiency of home cleaning. Their working principle is mainly based on two methods: brushing and vacuum suction. The rotating brush head sweeps up dust, debris and other sundries on the ground, and then uses strong vacuum suction to suck these sundries into the garbage collection box built in the robot, thus efficiently completing the floor cleaning work.

[0003] However, the height of the rotating mopping brush of most floor-sweeping robots on the market is fixed at present. This means that during the cleaning process, the pressure exerted on the ground is also constant. However, this design has an obvious limitation: when the rotating mopping brush is set at a relatively high height, although this helps to improve the obstacle-crossing ability of the robot, enabling it to easily cross small obstacles such as thresholds and carpet edges, it also results in relatively less pressure exerted on the ground. In this case, for those stubborn sundries and stains adhering to the floor, the floor-sweeping robot may be difficult to completely remove them by its own strength, and usually, the user needs to manually use a mop to apply greater pressure to achieve an ideal cleaning effect.

[0004] On the contrary, if the height of the rotating mopping brush is set too low, although it can increase the pressure exerted on the ground and improve the cleaning ability for stubborn stains, it will sacrifice the obstacle-crossing performance of the floor-sweeping robot. The too-low height of the mopping brush may cause the robot to get stuck or unable to pass smoothly when encountering obstacles such as thresholds and carpets, thus affecting its overall cleaning coverage and efficiency. Summary of the Invention

[0005] The purpose of the present invention is to propose a solution to solve the problem that the height of the rotating mopping brush of most floor-sweeping robots on the market is fixed at present. This means that during the cleaning process, the pressure exerted on the ground is also constant. However, this design has an obvious limitation: when the rotating mopping brush is set at a relatively high height, although this helps to improve the obstacle-crossing ability of the robot, enabling it to easily cross small obstacles such as thresholds and carpet edges, it also results in relatively less pressure exerted on the ground. In this case, for those stubborn sundries and stains adhering to the floor, the floor-sweeping robot may be difficult to completely remove them by its own strength.

[0006] To achieve the above object, the present invention adopts the following technical solution: a lifting cleaning mechanism for a floor sweeping robot, which includes a robot body, and further includes: a lifting component and a cleaning component assembled inside the robot body; The cleaning component includes a servo motor installed on the top of a lifting plate included in the lifting component. The output end of the servo motor passes through the lifting plate and is connected to a rotating shaft. A plurality of rotating shafts are rotatably connected to the bottom of the lifting plate, and the rotating shaft and the rotating shafts are connected by a transmission member. Connecting plates are fixedly connected to the bottoms of the rotating shaft and the rotating shafts, and cleaning brushes are slidably connected to the bottoms of the connecting plates through an adjusting component; The lifting of the lifting plate is controlled by the lifting component, and the cleaning brush at the bottom of the connecting plate is synchronously driven to move. At the same time, the opening degree of the cleaning brush is controlled by the adjusting component to adjust the cleaning area of the cleaning brush.

[0007] As a further description of the above technical solution: The transmission member includes pulley wheels fixedly connected to the outer peripheries of the rotating shaft and the rotating shafts, and the pulley wheels are connected by a belt.

[0008] As a further description of the above technical solution: The adjusting component includes a sliding groove opened on the inner wall of a connecting frame included in the lifting component, and an embedded groove opened on the outer peripheries of the rotating shaft and the rotating shafts. A socket plate is slidably connected to the inner wall of the sliding groove, and the socket plate is rotatably sleeved on the outer periphery of the embedded groove. A second electric push rod is fixedly connected to the bottom of the socket plate. A sliding groove is opened on the outer peripheries of the rotating shaft and the rotating shafts, and a rotating plate is slidably connected to the inner wall of the sliding groove. The rotating plate and the second electric push rod are connected by a rotating member.

[0009] As a further description of the above technical solution: The rotating member includes a fixing plate fixedly connected to the bottom of the second electric push rod. A rotating groove is opened inside the rotating plate, and the rotating groove is rotatably connected to the fixing plate.

[0010] As a further description of the above technical solution: A plurality of pushing members are installed at the bottom of the rotating plate. The pushing members include a plurality of moving grooves opened inside the connecting plate, and the inner wall of the moving groove is connected to the cleaning brush through a sliding moving block. Mounting frames are fixedly connected to the bottoms of the rotating plate and the moving block. A positioning rod is fixedly connected to the inner wall of the mounting frame, and the two positioning rods are rotatably connected by a connecting rod.

[0011] As a further description of the above technical solution: A fixing rod in contact with the moving block is fixedly connected to the inner wall of the moving groove. A telescopic spring is sleeved on the outer periphery of the fixing rod, and the two ends of the telescopic spring are respectively connected to the inner wall of the moving groove and one side of the moving block.

[0012] As a further description of the above technical solution: Grooves are provided inside the connecting plate, the rotating shaft, and the rotating axis, and the grooves communicate with the sliding grooves. A connecting block sliding inside the groove is fixedly connected to the inner wall of the rotating plate, and a flat brush is connected to the bottom of the connecting block.

[0013] As a further description of the above technical solution: The lifting assembly includes a connecting frame fixedly connected inside the robot body. Lifting grooves are provided on both inner walls of the connecting frame, and a lifting plate is slidably connected to the inner wall of the lifting groove. A first electric push rod is installed between the top of the lifting plate and the inner wall of the connecting frame.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: By providing the lifting assembly, the cleaning assembly, and the adjusting assembly, when it is necessary to adjust the height of the cleaning assembly, the first electric push rod can be started. After the first electric push rod is started, it will push the lifting plate to slide in the lifting groove. As the lifting plate descends, the cleaning assembly installed thereon also descends accordingly, thereby increasing the pressure on the ground, effectively cleaning stubborn debris and stains remaining on the ground, and improving the cleaning effect; On the contrary, if the first electric push rod operates in the reverse direction, pulling the lifting plate to slide upward in the lifting groove, the cleaning assembly will rise accordingly, increasing the gap from the ground, thereby improving the obstacle-crossing ability of the robot body, enabling it to more easily cross small obstacles such as the edge of a carpet, and ensuring the continuity and high efficiency of the cleaning work; If it is necessary to adjust the cleaning area of the cleaning brush, the second electric push rod can be started. When the second electric push rod descends, it will drive the fixing plate to move together, and then push the rotating plate to descend along the sliding groove. The descent of the rotating plate will cause the mounting frame to push the connecting rod on the outer periphery of the positioning rod, so that the connecting rod drives the moving block to move on the inner wall of the moving groove and the outer periphery of the fixed rod. At this time, the telescopic spring that was originally in a compressed state starts to rebound, assisting the movement of the moving block. The longer the second electric push rod descends, the farther the moving block drives the cleaning brush to move, and multiple cleaning brushes will move away from each other, thereby effectively increasing the cleaning area; On the contrary, if it is necessary to reduce the cleaning area, the second electric push rod can be started to rise. At this time, the second electric push rod will pull the fixing plate and the rotating plate to move upward in the sliding groove. The rise of the rotating plate will drive the mounting frame to pull the connecting rod, so that the moving block slides on the inner wall of the moving groove and the outer periphery of the fixed rod, and squeezes the telescopic spring. As multiple moving blocks approach each other, the cleaning brushes will also approach accordingly, thereby reducing the cleaning area. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shows the overall structural schematic diagram of the present invention; Figure 2 Shows the structural schematic diagram of another perspective of the present invention; Figure 3 Shows the schematic structural diagram of the lifting component of the present invention; Figure 4 Shows the schematic structural diagram of the adjustment component of the present invention; Figure 5 Shows the present invention Figure 4 Schematic diagram of another perspective structure; Figure 6 Shows the schematic structural diagram of the connecting plate of the present invention; Figure 7 Shows the schematic structural diagram of the adjustment component of the present invention; Figure 8 Shows the disassembled schematic structural diagram of the fixing plate of the present invention; Figure 9 Shows the schematic structural diagram of the connecting block of the present invention.

[0016] Legend description: 10. Robot body; 20. Lifting component; 21. Connecting frame; 211. Lifting groove; 22. Lifting plate; 23. First electric push rod; 30. Cleaning component; 31. Servo motor; 32. Rotating shaft; 33. Rotating shaft; 34. Pulley; 35. Belt; 36. Connecting plate; 37. Cleaning brush; 40. Adjustment component; 41. Sliding groove; 42. Embedded groove; 43. Socket plate; 44. Second electric push rod; 441. Fixing plate; 442. Rotating plate; 443. Rotating groove; 444. Chute; 45. Mounting frame; 451. Positioning rod; 452. Link; 453. Moving block; 454. Moving groove; 46. Fixed rod; 47. Telescopic spring; 48. Groove; 481. Connecting block; 482. One-word brush. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0018] As Figures 1-9As shown in the figure, a lifting floor-sweeping mechanism of a floor-sweeping robot provided by the present invention includes a robot body 10. An adsorption component is installed at the bottom of the robot body 10. It further includes a lifting component 20 and a cleaning component 30 assembled inside the robot body 10. The lifting component 20 includes a connecting frame 21 fixedly connected inside the robot body 10. Lifting grooves 211 are formed on the inner walls on both sides of the connecting frame 21, and a lifting plate 22 is slidably connected to the inner wall of the lifting groove 211. A first electric push rod 23 is installed between the top of the lifting plate 22 and the inner wall of the connecting frame 21. When it is necessary to perform lifting adjustment on the cleaning component 30, the first electric push rod 23 can be started. After the first electric push rod 23 is started, it will push against the lifting plate 22, causing the lifting plate 22 to slide smoothly in the lifting groove 211. As the lifting plate 22 descends, the cleaning component 30 installed on the lifting plate 22 also descends accordingly, so that a greater pressure can be exerted on the ground. This increased pressure helps to clean stubborn debris and stains remaining on the ground, improving the cleaning effect. On the contrary, when the first electric push rod 23 operates in the reverse direction and pulls the lifting plate 22 to slide upward in the lifting groove 211, the cleaning component 30 will rise accordingly. After the cleaning component 30 rises, the gap with the ground can be increased, thereby improving the obstacle-crossing performance of the robot body 10, enabling the robot body 10 to more easily cross small obstacles such as the edge of a carpet, and ensuring the continuity and high efficiency of the cleaning work.

[0019] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown in the figure, the cleaning component 30 includes a servo motor 31 installed on the top of the lifting plate 22. The output end of the servo motor 31 passes through the lifting plate 22 and is connected to a rotating shaft 32. A plurality of rotating shafts 33 are rotatably connected to the bottom of the lifting plate 22, and the rotating shaft 32 and the rotating shafts 33 are connected by a transmission member. The transmission member includes pulley wheels 34 fixedly connected to the outer circumferences of the rotating shaft 32 and the rotating shafts 33, and the pulley wheels 34 are connected by a belt 35. Connecting plates 36 are fixedly connected to the bottoms of the rotating shaft 32 and the rotating shafts 33, and a cleaning brush 37 is slidably connected to the bottom of the connecting plate 36 through an adjusting component 40. To ensure efficient cleaning of the ground during the lifting and lowering of the lifting plate 22, the servo motor 31 is started synchronously. After the servo motor 31 is started, it drives the rotating shaft 32 to start rotating. As the rotating shaft 32 rotates, the pulley 34 fixedly connected to its outer periphery also rotates accordingly. The rotation of the pulley 34 is transmitted through the belt 35 wound around its outer periphery, thereby driving the rotating shaft 33 to rotate synchronously with the rotating shaft 32. The rotation of the rotating shaft 32 and the rotating shaft 33 jointly drive the connecting plate 36 to perform a rotational motion. At this time, the cleaning brush 37 installed on the connecting plate 36 rotates accordingly to perform a detailed cleaning operation on the ground; Subsequently, during the continuous movement of the robot body 10, the adsorption component carried by it will play a role, quickly adsorbing the sundries and stains swept from the ground by the cleaning brush 37, and guiding these sundries and stains into the storage box built into the robot body 10, thus completing the entire ground cleaning and sundry collection process.

[0020] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, the adjusting component 40 includes a sliding groove 41 opened on the inner wall of the connecting frame 21 included in the lifting component 20, and an embedded groove 42 opened on the outer peripheries of the rotating shaft 32 and the rotating shaft 33. The inner wall of the sliding groove 41 is slidably connected to a socket plate 43, and the socket plate 43 is rotatably sleeved on the outer periphery of the embedded groove 42. As the rotating shaft 32 and the rotating shaft 33 rotate, the socket plate 43 restricted by the sliding groove 41 will not rotate along with it. At the same time, since the socket plate 43 is embedded in the embedded groove 42, as the rotating shaft 32 and the rotating shaft 33 lift and lower, it will drive the socket plate 43 to move in the sliding groove 41. A second electric push rod 44 is fixedly connected to the bottom of the socket plate 43. A sliding groove 444 is opened on the outer peripheries of the rotating shaft 32 and the rotating shaft 33, and a rotating plate 442 is slidably connected to the inner wall of the sliding groove 444. The rotating plate 442 and the second electric push rod 44 are connected through a rotating member. The rotating member includes a fixing plate 441 fixedly connected to the bottom of the second electric push rod 44. A rotating groove 443 is opened inside the rotating plate 442, and the rotating groove 443 and the fixing plate 441 are rotatably connected. Since the rotating plate 442 is slidably connected in the sliding groove 444, as the rotating shaft 32 and the rotating shaft 33 rotate, the rotating plate 442 is synchronously driven to rotate. And since the rotating plate 442 and the fixing plate 441 are embedded and slidably connected, the rotating plate 442 will not drive the fixing plate 441 to rotate together when the rotating plate 442 rotates. A plurality of pushing members are installed at the bottom of the rotating plate 442; The driving member includes a plurality of moving grooves 454 opened inside the connecting plate 36. The inner wall of the moving groove 454 is connected to the cleaning brush 37 through a sliding moving block 453. The bottom of the rotating plate 442 and the top of the moving block 453 are both fixedly connected with mounting frames 45. The inner wall of the mounting frame 45 is fixedly connected with positioning rods 451. The two positioning rods 451 are rotationally connected through a connecting rod 452. The inner wall of the moving groove 454 is fixedly connected with a fixed rod 46 that contacts the moving block 453. A telescopic spring 47 is sleeved on the outer periphery of the fixed rod 46. The two ends of the telescopic spring 47 are respectively connected to the inner wall of the moving groove 454 and one side of the moving block 453. Openings 48 are opened inside the connecting plate 36, the rotating shaft 32, and the rotating shaft 33. The openings 48 communicate with the sliding grooves 444. A connecting block 481 that slides inside the opening 48 is fixedly connected to the inner wall of the rotating plate 442. The bottom of the connecting block 481 is connected with a flat brush 482; When it is necessary to adjust the cleaning area of the cleaning brush 37, the second electric push rod 44 can be started to make it descend. As the second electric push rod 44 descends, the fixed plate 441 connected to it will move synchronously and push the rotating plate 442 to move downward along the sliding groove 444. The descent of the rotating plate 442 will cause the mounting frame 45 to push the connecting rod 452 outside the positioning rod 451, so that the connecting rod 452 drives the moving block 453 to move on the inner wall of the moving groove 454 and the outer periphery of the fixed rod 46. During this process, the telescopic spring 47 that was originally in a compressed state starts to rebound to assist the movement of the moving block 453. The longer the second electric push rod 44 descends, the farther the moving block 453 drives the cleaning brush 37 to move on the inner wall of the moving groove 454, so that the plurality of cleaning brushes 37 move away from each other, effectively increasing the cleaning area of the cleaning brush 37; On the contrary, if it is necessary to reduce the cleaning area, the second electric push rod 44 can be started to make it rise. At this time, the second electric push rod 44 will pull the fixed plate 441 and the rotating plate 442 to move upward in the sliding groove 444. The rise of the rotating plate 442 will drive the mounting frame 45 to pull the connecting rod 452 outside the positioning rod 451, so that the connecting rod 452 pulls the moving block 453 to slide on the inner wall of the moving groove 454 and the outer periphery of the fixed rod 46 and squeezes the telescopic spring 47. As the plurality of moving blocks 453 approach each other, the cleaning brushes 37 will also approach together, thereby reducing the cleaning area; When it is necessary to clean the gaps between tiles, the second electric push rod 44 also needs to be activated to make it descend. During the descending process, the fixed plate 441 will push against the rotating plate 442 to descend along the sliding groove 444, and drive the connecting block 481 to move within the slotted opening 48, thereby causing the flat brush 482 to descend. At the same time, the descending of the rotating plate 442 will also cause the mounting bracket 45 to push against the connecting rod 452 on the outer periphery of the positioning rod 451, causing the connecting rod 452 to drive the moving block 453 to move along the inner wall of the moving groove 454 and the outer periphery of the fixed rod 46. The telescopic spring 47 that was originally in a compressed state starts to rebound to assist the movement of the moving block 453. When the second electric push rod 44 descends to the maximum stroke, the moving block 453 also moves to the maximum stroke within the moving groove 454. At this time, the height of the flat brush 482 will be lower than that of the cleaning brush 37. In this case, there is no need to activate the servo motor 31. By activating the lifting and lowering of the first electric push rod 23, the flat brush 482 can be close to the gaps between tiles. As the robot body 10 moves, the flat brush 482 will extend into the gaps between tiles to push and clean the debris, thereby achieving effective cleaning of the gaps between tiles.

[0021] Working principle: When it is necessary to adjust the height of the cleaning assembly 30, the first electric push rod 23 can be activated. After the first electric push rod 23 is activated, it will push against the lifting plate 22 to slide within the lifting groove 211. As the lifting plate 22 descends, the cleaning assembly 30 mounted thereon also descends accordingly, thereby increasing the pressure on the ground, effectively cleaning stubborn debris and stains remaining on the ground, and improving the cleaning effect. On the contrary, if the first electric push rod 23 operates in the reverse direction, pulling the lifting plate 22 to slide upward within the lifting groove 211, the cleaning assembly 30 will rise accordingly, increasing the gap from the ground, and thus improving the obstacle-crossing ability of the robot body 10, enabling it to more easily cross small obstacles such as the edges of carpets, ensuring the continuity and high efficiency of the cleaning work. To ensure efficient cleaning of the ground during the lifting process, the servo motor 31 can be activated. The servo motor 31 drives the rotating shaft 32 to rotate, driving the pulley 34 fixedly connected to its outer periphery to rotate. Through the transmission of the belt 35, the rotating shaft 33 rotates synchronously with the rotating shaft 32. The two jointly drive the connecting plate 36 to rotate, driving the cleaning brush 37 mounted on the connecting plate 36 to clean the ground meticulously. Subsequently, when the robot body 10 moves, the adsorption component carried thereon will quickly adsorb the debris and stains swept by the cleaning brush 37 and guide them into the built-in storage box to complete the ground cleaning and debris collection. If it is necessary to adjust the cleaning area of the cleaning brush 37, the second electric push rod 44 can be activated. When the second electric push rod 44 descends, it drives the fixed plate 441 to move, pushing the rotating plate 442 to descend along the sliding groove 444. The descent of the rotating plate 442 causes the mounting bracket 45 to push the connecting rod 452 on the outer periphery of the positioning rod 451, so that the connecting rod 452 drives the moving block 453 to move along the inner wall of the moving groove 454 and the outer periphery of the fixed rod 46. The telescopic spring 47 that was originally in a compressed state rebounds to assist the movement of the moving block 453. The longer the second electric push rod 44 descends, the farther the moving block 453 drives the cleaning brush 37 to move, and the multiple cleaning brushes 37 move away from each other, increasing the cleaning area; On the contrary, if it is necessary to reduce the cleaning area, the second electric push rod 44 can be activated to rise, pulling the fixed plate 441 and the rotating plate 442 to move upward in the sliding groove 444. The rising of the rotating plate 442 drives the mounting bracket 45 to pull the connecting rod 452, so that the moving block 453 slides along the inner wall of the moving groove 454 and the outer periphery of the fixed rod 46, squeezing the telescopic spring 47. The multiple moving blocks 453 move closer to each other, and the cleaning brushes 37 also move closer, reducing the cleaning area; When it is necessary to clean the tile gap, the second electric push rod 44 is also activated to descend. During the descent, the fixed plate 441 pushes the rotating plate 442 to descend, driving the connecting block 481 to move in the slot 48, so that the flat brush 482 descends. At the same time, the descent of the rotating plate 442 causes the mounting bracket 45 to push the connecting rod 452, driving the moving block 453 to move, and the telescopic spring 47 rebounds to assist. When the second electric push rod 44 descends to the maximum stroke, the moving block 453 also moves to the maximum stroke in the moving groove 454. At this time, the height of the flat brush 482 is lower than that of the cleaning brush 37. Without activating the servo motor 31, through the lifting adjustment of the first electric push rod 23, the flat brush 482 is brought close to the tile gap. As the robot body 10 moves, the flat brush 482 extends into the tile gap to push and clean the sundries, achieving effective cleaning.

[0022] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A lifting sweeping mechanism for a floor cleaning robot, comprising a robot body (10), characterized in that, It further includes: A lifting component (20) and a cleaning component (30) assembled inside the robot body (10); The cleaning component (30) includes a servo motor (31) installed at the top of a lifting plate (22) included in the lifting component (20). The output end of the servo motor (31) passes through the lifting plate (22) and is connected to a rotating shaft (32). A plurality of rotating shafts (33) are rotatably connected to the bottom of the lifting plate (22), and the rotating shaft (32) and the rotating shafts (33) are connected by a transmission member. Connecting plates (36) are fixedly connected to the bottoms of the rotating shaft (32) and the rotating shafts (33). A cleaning brush (37) is slidably connected to the bottom of the connecting plate (36) through an adjusting component (40); The lifting of the lifting plate (22) is controlled by the lifting component (20), synchronously driving the cleaning brush (37) at the bottom of the connecting plate (36) to move. At the same time, the opening degree of the cleaning brush (37) is controlled by the adjusting component (40) to adjust the cleaning area of the cleaning brush (37).

2. The lifting floor-sweeping mechanism of a floor-sweeping robot according to claim 1, characterized in that, The transmission member includes pulley wheels (34) fixedly connected to the outer peripheries of the rotating shaft (32) and the rotating shafts (33), and the pulley wheels (34) are connected by a belt (35).

3. The lifting floor-sweeping mechanism of a floor-sweeping robot according to claim 2, characterized in that, The adjusting component (40) includes a sliding groove (41) opened on the inner wall of a connecting frame (21) included in the lifting component (20), and an embedded groove (42) opened on the outer peripheries of the rotating shaft (32) and the rotating shafts (33). A socket plate (43) is slidably connected to the inner wall of the sliding groove (41), and the socket plate (43) is rotatably sleeved on the outer periphery of the embedded groove (42). A second electric push rod (44) is fixedly connected to the bottom of the socket plate (43). A sliding groove (444) is opened on the outer peripheries of the rotating shaft (32) and the rotating shafts (33). A rotating plate (442) is slidably connected to the inner wall of the sliding groove (444). The rotating plate (442) and the second electric push rod (44) are connected by a rotating member.

4. The lifting floor-sweeping mechanism of a floor-sweeping robot according to claim 3, characterized in that The rotating member includes a fixing plate (441) fixedly connected to the bottom of the second electric push rod (44). A rotating groove (443) is opened inside the rotating plate (442), and the rotating groove (443) and the fixing plate (441) are rotatably connected.

5. The lift type floor sweeping mechanism of a floor sweeping robot according to claim 4, characterized in that, A plurality of pushing members are installed at the bottom of the rotating plate (442). The pushing members include a plurality of moving grooves (454) opened inside the connecting plate (36). The inner wall of the moving groove (454) and the cleaning brush (37) are connected by a sliding moving block (453). Mounting frames (45) are fixedly connected to the bottoms of the rotating plate (442) and the top of the moving block (453). A positioning rod (451) is fixedly connected to the inner wall of the mounting frame (45), and the two positioning rods (451) are rotatably connected by a connecting rod (452).

6. The lifting floor sweeping mechanism of a floor sweeping robot according to claim 5, characterized in that, A fixing rod (46) in contact with the moving block (453) is fixedly connected to the inner wall of the moving groove (454). A telescopic spring (47) is sleeved on the outer periphery of the fixing rod (46). The two ends of the telescopic spring (47) are respectively connected to the inner wall of the moving groove (454) and one side of the moving block (453).

7. The lift type floor sweeping mechanism of a floor sweeping robot according to claim 6, characterized in that, The connecting plate (36), the rotating shaft (32), and the rotary shaft (33) are all provided with slots (48) inside, and the slots (48) communicate with the sliding grooves (444). A connecting block (481) that slides inside the slot (48) is fixedly connected to the inner wall of the rotating plate (442), and a flat brush (482) is connected to the bottom of the connecting block (481).

8. The lift-type floor sweeping mechanism of a floor sweeping robot according to claim 3, characterized in that, The lifting assembly (20) includes a connecting frame (21) fixedly connected inside the robot body (10). Lifting grooves (211) are formed in the inner walls on both sides of the connecting frame (21), and a lifting plate (22) is slidably connected to the inner walls of the lifting grooves (211). A first electric push rod (23) is installed between the top of the lifting plate (22) and the inner wall of the connecting frame (21).